Solved by bobbilyking

#	Title	# Solved	Avg. Tries
12858	Range GCD	555	2.71
19468	Simple Graph	6	2.33
19472	Array and Operations	139	1.85
21763	Bingo	170	3.28
32712	다이얼 룰렛	87	2.26
32713	숫자 POP	93	1.61
32747	LIS On Tree	3	2.67

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